Richard Henderson 976a55c0fe Revert "linux-user: un-parent OBJECT(cpu) when closing thread" ...

This reverts commit 52f0c16076.

This caused a regression in arm/aarch64.

We are hard-coding ARMCPRegInfo pointers into TranslationBlocks,
for calling into helper_{get,set}cp_reg{,64}.  So we have a race
condition between whichever cpu thread translates the code first
(encoding the pointer), and that cpu thread exiting, so that the
next execution of the TB references a freed data structure.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

2022-08-18 18:08:57 -07:00

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